Tumbling-barrel.



N. RANSOHOFF.

, TUMBLING BARREL.

APPLICATION FILED IAN. 9.1919.

1 ,297,0., Patented Mar. 18,1919.

2 SHEETS-SHEET l- N; RANSOHOFF.

TUMBLING BARREL APPLICATION FIALED IAN-9.1919.

2 SHEETS-SHE 2- NATHAN BAN OHOFF, OF CINC O.

. TUMBLING-B.

Specification of Letters Patent. Patented Mar. 18, 1919.

Application filed January 8, 1919. Serial No. 270,898.

To all whom it may concern:

Be it known that I, NATHAN RANsonorr, a citizen of the United States,and 9. mm-

dent of the city of Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful Improvements inTumblingBarrels, of which the following is a full, clear, and exactdescription, refer:

between the head at the central opemng and ones being made to theaccompanying drawings, forming part of this specification.

My invention relates to receptacles for holding metal parts which areshaken up and rolled around upon each other to smooth oii and polish theedges by rotating or rocking the vessel in which the articles areplaced. These receptacles are. usually in the shape of a cylindricalbarrel, with an opening in the side for charging and discharging themetal parts, and with this construction it is of course necessary thatfor charging the tumbling barrel the opening should be at the top, andfor discharging the opening must be brought to the bottom, and ittherefore follows with the usual construction that the apparatus has tobe stopped during the loading and unloading.

It is the principal object of my invention to provide a constructionwhich can be loaded and unloaded while running and which can be arrangedto discharge into a wheelbarrow or other receptacle while r0.- tating,and which may be equipped with a power loader for depositing in thebarrel 2. complete batch from the ground level.

Another object is to provide a construe tion which can be readily andeasily equipped with a suction tube for drawing off the dust and powder.while the machine is still operating.

The invention consists of that certain novel construction andarrangement of parts to be hereinafter particularly pointed "out andclaimed under which the above objects are attained.

In the drawings,

Figure 1 is a side elevation of my improved tumbling barrel.

' Figs. from the right and left hand ends of the machine as illustratedin Fig. 1.

Fig. 4 is a central longitudinal section of the barrel.

Supported in suitableend standards 1, 1, preferably on rollers. 2, 2, isa cylindrical 2 and 3 are end elevations taken casing 3, with open endsclosed by the heads 4. 5. One of these heads 4 is formed with a centralopening for the reception of a receiving hopper 6. As the hopper is toremain stationary While the casing with its heads is rotated, to providea dustproof joint between the hopper and the head, I formsemi-cylindrical engaging surfaces the inner surface of the hopper andarrange for an oil passageway 8 and a grease cup 9 to keep the jointlubricated. The hopper is provided with a closing lid or cover 10 and ashort pipe section 12 which can be readily connected with an exhaust fan(not shown) for exhausting the dust from the barrel. The hopper is heldstationary while the barrel revolves by means of spring bolts 13 on eachside of the hopper secured to the frame at 14 and with the bolts passingthrough lugs 15 on the hopper and coiled springs 16 bearing between theadjusting nuts 17 on the end of the bolts and the lugs 15. so that atight suction joint is maintained between the rotating barrel and thehopper thus held in eng ement'i'i At the central portion 0 the oppositehead 5 of the barrel, I provide a comically shaped discharge opening 18in which the closing plug 19 is arranged to fit.

On the inside of the barrel is secured a spiral blade 20 extending fromthe receiv ing to the discharge end of the barrel. Near the dischargeend this spiral blade terminates in a. cup formed with a tvertical sidewall 21 and end wall 22 and a movable or swinging bottom 23, which ishinged to side "wall at 24. This swinging bottom is pivotally connectedwith the plug 19 by the links 25 and 25*, coupled together with a doubleswiveled joint 25", and when the plug is in its closed position theswinging bottom 23 will take the position shown in dotted lines in Fig.1 in a direct line with the side wall of the cup, leaving the cupportion entirely open. When, however, the plug is withdrawn, theswinging bottom 23 will be drawn into a slanting position to the edge ofthe discharge opening. When the discharge opening is closed, thecontents of the barr'el will continue to tumble around through the opencup; but. when the plug-is withdrawn, the material will be dischargedthrough the outlet.

introduced through the hopper.

mounted on the portion 31, so as to slide on' the rod. The connectionbtween the inner end of the lever 26 and the link 25 at 34 is auniversal joint connection, so as to permit the link-to rotate with thebarrel.

.For rotating the barrel, the barrel rests.

on the rollers 2, 2, and it is rotated by the sprocket chain 35 whichengages the sprocket wheel 36 formed on the circumference of the barreland is driven by the sprocket 37 on the power shaft 38, driven by beltand pulley, or in any other suitable way. i

It will be evident from the foregoing description that-the material tobe polished may be dumped in through the hopper 6 and the barrelrotated, and while rotating the full batch may be deposited thereinuntil the receptacle is about two-thirds full. After the parts have beensufficiently tumbled around, the discharge opening is opened and thusdraws the bottom 23 up to the edge of the discharge opening and thematerial is delivered while the barrel is still rotating,

and at the same time a new charge may be Before opening up thereceptacle for the discharge of its contents, a suction fan may beutilized for drawing oil the dust;

Having thus described my invention, what I claim as new and desire tosecureby Letters Patent, is

1. In a tumbling machine, a horizontally disposed rotatable cylindricalcasing, with inlet and discharge openings at opposite endsat the axis ofrotation of the casing, a

fixed. hopper, with connection therefor with the inlet opening for thereception of material while the casing is rotated, and a door for thedischarge opening, with means for delivering the material to saidopening when the door is opened.

2. In a tumbling machine, a horizontally disposed rotatable cylindricalcasing, with inlet and discharge openings at opposite ends at the axisof rotation of the casing, a fixed hopper, with connection therefor withthe inlet opening for the reception of material while the casingisrotated, and a door for the discharge opening, with means for deliveringthe material to said opening, and connecting mechanism intermediate thedelivery means and the door, whereby when the door is opened thematerial will be discharged.

3. In a tumbling machine, th combination with the frame and a rotatablecasin mounted therein, of a fixed hopper mount in the frame centrall ofthe casing, with a coupling joint there or with the casingfto permit thecasing to rotate with the hopper I stationary, the casing provided witha delivery opening at the opposite end, with a swinging door adapted tobe opened or closed while the casing-is rotating, whereby the casingcan. be used without stopping its rotation for loading and unloading themachine.

4. In a tumbling machine, the combination with the frame and a rotatablecasing mounted therein, of a fixed hopper mounted in the frame centrallyof the casing, with a coupling joint therefor with the casing to permitthe casing to rotate with the hopper stationary, a cup receptable withinthe casing provided with a swinging bottom, a swinging door or plug forthe delivery end of the casing, with connection intermediate the plugand the cup bottom, whereby upon the opening of the plug the cup bottomshall be shifted to direct the material to the discharge opening, andupon the closing of the plug the cup bottom shall be withdrawn.

5. In a tumbling machine, the combination with the frame and a rotatablecasing its rotation for loading and unloading the machine.

6. In a tumbling machine, the combination with the frame and arotatablecasing mounted therein, of a fixed hopper mounted in the frame centrallyof the casing, with a coupling joint therefor with the casing to permitthe casing torotate with the hopper stationary, a tight cover and anexhaust com nection for the hopper, a cup receptacle within the casingprovided with a swinging bottom, a swinging door or plug for thedelivery end of the casing, with. connection intermediate the plug andthe cup bottom, whereby upon the opening of the plug the cup bottomshall be shifted to direct the material to the discharge opening, andupon the closing of the plug .the cup bottom shall be withdrawn.

7. In a tumbling machine, the combination with the frame and ahorizontally disposed rotatable cylindrical casing provided with aninternal spiral conveyor and .a cup recepneee eee means for rotating theeasing in the frame, the plug and the cup bottom, whereby upon 05 a,fixed hopper mounted in the frame centhe opening of the plug the cupbottom shall tea-11y of the easing, with a eeupl ing joint be shifted todirect the material to the dis- 1e therefor with the casing to permitthe casing charge opening, and upon the closing of the 5 t0 rotate withthe hopper stationary, a plug the cup bottom shall be withdrawn.

swinging door or plug for the delivery end 4 of the casing, with a, linkconnection between NATHAN RANSOHOFF.

